component
SN74HC245
Public Made by Adomby adom
TI octal bus transceiver with 3-state outputs, SOIC-20. Direction + output-enable, 8 channels, 2-6 V. Datasheet-verified.
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page.json+194−8@@ -1,8 +1,11 @@ {+ "schema_version": 1,+ "type": "component", "slug": "sn74hc245",+ "title": "SN74HC245",+ "brief": "TI octal bus transceiver with 3-state outputs, SOIC-20. Direction + output-enable, 8 channels, 2-6 V. Datasheet-verified.", "version": "0.1.0",- "type": "component",- "description": "TI octal bus transceiver with 3-state outputs, SOIC-20. Direction + output-enable, 8 channels, 2-6 V. Datasheet-verified.",+ "license": "CC-BY-SA-4.0", "tags": [ "component", "logic",@@ -12,6 +15,194 @@ "soic-20", "texas-instruments" ],+ "component": {+ "mpn": "SN74HC245",+ "manufacturer": "Texas Instruments",+ "package": "SOIC-20",+ "pin_count": 20,+ "category": "Logic IC",+ "subcategory": "Octal bus transceiver (3-state)",+ "datasheet": "https://www.ti.com/lit/ds/symlink/sn74hc245.pdf",+ "parts": {+ "symbol": "sn74hc245.kicad_sym",+ "footprint": "sn74hc245.kicad_mod",+ "model_3d": "sn74hc245.glb"+ },+ "distributor_links": {},+ "pins": [+ {+ "number": "1",+ "name": "DIR",+ "type": "input",+ "description": "Direction control input. When DIR is high, data flows from A bus to B bus; when low, data flows from B bus to A bus. CMOS logic input, held at VCC or GND per recommended operating conditions."+ },+ {+ "number": "2",+ "name": "A1",+ "type": "bidirectional",+ "description": "Channel 1 A-side data pin. Acts as input when DIR is high (transmits to B1) or output when DIR is low (driven by B1). High-impedance when OE is high."+ },+ {+ "number": "3",+ "name": "A2",+ "type": "bidirectional",+ "description": "Channel 2 A-side data pin. Bidirectional; direction set by DIR, enabled by OE (active-low)."+ },+ {+ "number": "4",+ "name": "A3",+ "type": "bidirectional",+ "description": "Channel 3 A-side data pin. Bidirectional; direction set by DIR, enabled by OE (active-low)."+ },+ {+ "number": "5",+ "name": "A4",+ "type": "bidirectional",+ "description": "Channel 4 A-side data pin. Bidirectional; direction set by DIR, enabled by OE (active-low)."+ },+ {+ "number": "6",+ "name": "A5",+ "type": "bidirectional",+ "description": "Channel 5 A-side data pin. Bidirectional; direction set by DIR, enabled by OE (active-low)."+ },+ {+ "number": "7",+ "name": "A6",+ "type": "bidirectional",+ "description": "Channel 6 A-side data pin. Bidirectional; direction set by DIR, enabled by OE (active-low)."+ },+ {+ "number": "8",+ "name": "A7",+ "type": "bidirectional",+ "description": "Channel 7 A-side data pin. Bidirectional; direction set by DIR, enabled by OE (active-low)."+ },+ {+ "number": "9",+ "name": "A8",+ "type": "bidirectional",+ "description": "Channel 8 A-side data pin. Bidirectional; direction set by DIR, enabled by OE (active-low)."+ },+ {+ "number": "10",+ "name": "GND",+ "type": "power_in",+ "description": "Ground reference (0 V). Return path for VCC supply current and signal reference."+ },+ {+ "number": "11",+ "name": "B8",+ "type": "bidirectional",+ "description": "Channel 8 B-side data pin. Bidirectional; paired with A8. Direction set by DIR, enabled by OE (active-low)."+ },+ {+ "number": "12",+ "name": "B7",+ "type": "bidirectional",+ "description": "Channel 7 B-side data pin. Bidirectional; paired with A7. Direction set by DIR, enabled by OE (active-low)."+ },+ {+ "number": "13",+ "name": "B6",+ "type": "bidirectional",+ "description": "Channel 6 B-side data pin. Bidirectional; paired with A6. Direction set by DIR, enabled by OE (active-low)."+ },+ {+ "number": "14",+ "name": "B5",+ "type": "bidirectional",+ "description": "Channel 5 B-side data pin. Bidirectional; paired with A5. Direction set by DIR, enabled by OE (active-low)."+ },+ {+ "number": "15",+ "name": "B4",+ "type": "bidirectional",+ "description": "Channel 4 B-side data pin. Bidirectional; paired with A4. Direction set by DIR, enabled by OE (active-low)."+ },+ {+ "number": "16",+ "name": "B3",+ "type": "bidirectional",+ "description": "Channel 3 B-side data pin. Bidirectional; paired with A3. Direction set by DIR, enabled by OE (active-low)."+ },+ {+ "number": "17",+ "name": "B2",+ "type": "bidirectional",+ "description": "Channel 2 B-side data pin. Bidirectional; paired with A2. Direction set by DIR, enabled by OE (active-low)."+ },+ {+ "number": "18",+ "name": "B1",+ "type": "bidirectional",+ "description": "Channel 1 B-side data pin. Bidirectional; paired with A1. Direction set by DIR, enabled by OE (active-low)."+ },+ {+ "number": "19",+ "name": "OE",+ "type": "input",+ "description": "Active-low output enable. When OE is low, transceivers are enabled per DIR; when OE is high, all A and B pins are placed in high-impedance (isolation) state. Should be tied to VCC through a pullup resistor during power-up/down to guarantee high-Z."+ },+ {+ "number": "20",+ "name": "VCC",+ "type": "power_in",+ "description": "Positive supply pin. Recommended operating range 2 V to 6 V (5 V nominal). Bypass with 0.1 uF ceramic capacitor to GND."+ }+ ],+ "provenance": {+ "extractor": "ds2sf",+ "datasheet": {+ "url": "https://www.ti.com/lit/ds/symlink/sn74hc245.pdf",+ "pages": 35,+ "sha256": "c78c3a1bb10a438d",+ "source_tier": "mfr"+ },+ "cad": "KiCad official (CC-BY-SA 4.0)",+ "pins": {+ "total": 20,+ "described": 20,+ "cites_pages": true,+ "refuses_to_fabricate": true+ }+ },+ "viewers": {+ "symbol": "viewers/symbol.html",+ "footprint": "viewers/footprint.html"+ }+ },+ "metadata": {+ "specs": {+ "Type": "Octal bus transceiver, 3-state",+ "Channels": "8 (A1-A8 <-> B1-B8)",+ "Direction": "DIR pin (A->B high, B->A low)",+ "Output enable": "/OE (active-low, Hi-Z)",+ "Logic family": "HC (high-speed CMOS)",+ "Supply voltage": "2-6 V",+ "Package": "SOIC-20",+ "Body (L\u00d7W\u00d7H)": "12.8 \u00d7 7.5 \u00d7 2.35 mm"+ }+ },+ "sections": [+ "hero",+ "viewers",+ "readme",+ "breadcrumbs",+ "info"+ ],+ "discovery_triggers": [+ "sn74hc245",+ "74hc245",+ "octal bus transceiver",+ "3-state buffer",+ "bidirectional buffer"+ ],+ "discovery_pitch": "SN74HC245 octal bus transceiver with 3-state outputs (SOIC-20) with datasheet-verified pinout, KiCad symbol/footprint/3D, and full provenance.",+ "author": {+ "name": "Ray",+ "email": "[email protected]"+ }, "dependencies": {}, "hero": { "type": "image",@@ -27,10 +218,5 @@ "docs/sn74hc245-datasheet.pdf", "viewers/symbol.html", "viewers/footprint.html"- ],- "visibility": "public",- "author": {- "name": "Ray",- "email": "[email protected]"- }+ ] }